Added tests for the new .isalpha() and .isalnum() methods.
diff --git a/Lib/test/test_string.py b/Lib/test/test_string.py
index ec57c26..c7c3e72 100644
--- a/Lib/test/test_string.py
+++ b/Lib/test/test_string.py
@@ -84,6 +84,21 @@
test('istitle', 'Not\ta Titlecase String', 0)
test('istitle', 'Not--a Titlecase String', 0)
+test('isalpha', 'a', 1)
+test('isalpha', 'A', 1)
+test('isalpha', '\n', 0)
+test('isalpha', 'abc', 1)
+test('isalpha', 'aBc123', 0)
+test('isalpha', 'abc\n', 0)
+
+test('isalnum', 'a', 1)
+test('isalnum', 'A', 1)
+test('isalnum', '\n', 0)
+test('isalnum', '123abc456', 1)
+test('isalnum', 'a1b3c', 1)
+test('isalnum', 'aBc000 ', 0)
+test('isalnum', 'abc\n', 0)
+
test('splitlines', "abc\ndef\n\rghi", ['abc', 'def', '', 'ghi'])
test('splitlines', "abc\ndef\n\r\nghi", ['abc', 'def', '', 'ghi'])
test('splitlines', "abc\ndef\r\nghi", ['abc', 'def', 'ghi'])